Improvement in let-off mechanisms for looms



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Letters patent Nfl/111,002, dated January 17, 1871.

IMPROVEMENT IN LET-QFF MECHANI'SMS FOR LQOMS.

The Schedule referred to in these Letters Patent and making parl; of thesame.

To all whom it 'may concern:

Be it known that I, HORATIO A. MEMINGTON, of Anthony, in the county ofKent and State oflthode Island, have invented a new and usefulImprovement in Let-off Motions for Looms; and do hereby declare thefollowing to be a full and correct description thereof, reference beinghad to the accompanying drawing making part of this specification and tothe letters and numbers of reference marked thereon, similar letters andnumbers being used in all the figures to denote the same parts.

' In the drawing- Figure 1 shows the side of a loom, with the let-offmotion attached.

Figure 2 is a back view of a loom.

Figure 3 shows the reverse of the stud-wheel and arm B. X

This invention consists in using a small wheel, with 1 stops or studs onitsface, near the outer edge, and in the center of which a pad isheld byan arm attached to the whip-roll, so that changes in the tension ofthewarp stretched oyer the whip-roll will cause the arm and pad to vibrateback and forth in the studs, thus f allowing the stud-wheel to revolve,which, being connected by means of gears to'the yarn-beam, will cause orallow that to turn and leto' the required length of warp;

I will proceed more fully to describe its construe Ou the innerend ofthis shaft is a small pinion, o, that meshes into the., gear-wheel onthe head of vthe yarn-beam.

S is the warp, and

N is a weight hung on an arm on the end ofthe whip-roll, to keep thewarp tight, or a spring may be used in place ofthe weight.

The operation is as follows:

The tension of the warp is kept up by the weight N on the arm, 011 thewhip-roll O, over which the warp is drawn, Athe yaru-beam beingprevented from turning -by the train ofgear-wheels that connects it tothe wheel o, which is held by one of its studs or teeth rest-ing on thepad a. But when the lathe beats up -the lling the strain on the warpis'increased, and the whip-roll is drawn over so as to more the arm Bback, throwing the pad a into the center of the wheel, and releasing thewheel o Vone stud, and the yarn-beam also by the train of wheels betweenthe two, as Ybefore mentioned. As soon as the strain upon the warp iseased by the turning of the yarn-beam a little, the;

weight N will bringthe whip-roll back, aud the arm B will push the pad aback between the. studs again, being assisted by the rounded end of thepad striking against the stud on the opposite side of the wheel, onestud of the wheel o only being releascdby the operation at a time, butthis is done as often as the tension of the warp requires..

Having thus described my let-off motion, Vhat I claim as my invention,and desire to secure by Letters Patent, isp The combination of thestud-wheel o and the centrally-locatedpad a on the arm of the vibrator',operating inside the circle of teeth of the stud-wheel, all constructedand operating substantially as herein set forth, and for the purposespecified.

` HORATIO A. REMINGTON. Vitnesses:

BENJAMIN ARNOLD, JAMES E. ARNOLD.

